can i get help with this please what does it mean type of root
Determine the number and type of roots
2X(X+2) =-2
2 answers
roots are also knows as zeros or x-intercepts ,so solve for x
to examine the type of roots and find the number of roots be look at the determinant b^2 - 4ac
2x^2 + 4x + 2 = 0
or
x^2 + 2x + 1 = 0
the solution is so blatantly obvious,
(x+1)^2=0
x+1=0
x = -1
it was simpler to actually find the root
anyway .....
b^2 - 4ac = 4 -4(1)(1) = 0
so one real root, which we found
2x^2 + 4x + 2 = 0
or
x^2 + 2x + 1 = 0
the solution is so blatantly obvious,
(x+1)^2=0
x+1=0
x = -1
it was simpler to actually find the root
anyway .....
b^2 - 4ac = 4 -4(1)(1) = 0
so one real root, which we found
3 answers